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Chemical like DDT, PHP, PCP, etc. Are used in which method of termite proofing.

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Chemical like DDT, PHP, PCP, etc. Are used in which method of termite proofing.

(a) Structural barrier

(b) Soil treatment using powder

(c) Soil treatment using emulsion

(d) Electronic method

I have been asked this question in an interview for internship.

This intriguing question originated from Termite Proofing in section Damp Proofing, Water Proofing and Termite Proofing of Construction & Building Materials

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The correct choice is (c) Soil treatment using emulsion

To explain: In soil treatment with chemical, all Chemicals are chlorinated hydrocarbons. They are insoluble in water and hence they are not reached out by the subsoil water. The application of this chemical serve as a chemical barrier between the building and the ground and this method has proved to be the most effective method of termite proofing.

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